Annotation of mandoc/html.c, Revision 1.162
1.162 ! kristaps 1: /* $Id: html.c,v 1.161 2014/08/13 15:25:22 schwarze Exp $ */
1.1 kristaps 2: /*
1.126 schwarze 3: * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.154 schwarze 4: * Copyright (c) 2011, 2012, 2013, 2014 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.29 kristaps 7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 9: *
1.29 kristaps 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 17: */
1.92 kristaps 18: #include "config.h"
19:
1.41 kristaps 20: #include <sys/types.h>
1.30 kristaps 21:
1.1 kristaps 22: #include <assert.h>
1.68 kristaps 23: #include <ctype.h>
1.76 kristaps 24: #include <stdarg.h>
1.29 kristaps 25: #include <stdio.h>
1.63 kristaps 26: #include <stdint.h>
1.1 kristaps 27: #include <stdlib.h>
1.33 kristaps 28: #include <string.h>
1.45 kristaps 29: #include <unistd.h>
1.1 kristaps 30:
1.100 kristaps 31: #include "mandoc.h"
1.155 schwarze 32: #include "mandoc_aux.h"
1.138 kristaps 33: #include "libmandoc.h"
1.58 kristaps 34: #include "out.h"
1.51 kristaps 35: #include "html.h"
1.64 kristaps 36: #include "main.h"
1.63 kristaps 37:
1.29 kristaps 38: struct htmldata {
1.63 kristaps 39: const char *name;
1.29 kristaps 40: int flags;
1.30 kristaps 41: #define HTML_CLRLINE (1 << 0)
42: #define HTML_NOSTACK (1 << 1)
1.93 kristaps 43: #define HTML_AUTOCLOSE (1 << 2) /* Tag has auto-closure. */
1.29 kristaps 44: };
1.7 kristaps 45:
1.29 kristaps 46: static const struct htmldata htmltags[TAG_MAX] = {
1.30 kristaps 47: {"html", HTML_CLRLINE}, /* TAG_HTML */
48: {"head", HTML_CLRLINE}, /* TAG_HEAD */
49: {"body", HTML_CLRLINE}, /* TAG_BODY */
1.93 kristaps 50: {"meta", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_META */
1.33 kristaps 51: {"title", HTML_CLRLINE}, /* TAG_TITLE */
1.30 kristaps 52: {"div", HTML_CLRLINE}, /* TAG_DIV */
1.29 kristaps 53: {"h1", 0}, /* TAG_H1 */
54: {"h2", 0}, /* TAG_H2 */
55: {"span", 0}, /* TAG_SPAN */
1.99 kristaps 56: {"link", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_LINK */
1.93 kristaps 57: {"br", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_BR */
1.30 kristaps 58: {"a", 0}, /* TAG_A */
1.33 kristaps 59: {"table", HTML_CLRLINE}, /* TAG_TABLE */
1.114 kristaps 60: {"tbody", HTML_CLRLINE}, /* TAG_TBODY */
1.93 kristaps 61: {"col", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_COL */
1.33 kristaps 62: {"tr", HTML_CLRLINE}, /* TAG_TR */
63: {"td", HTML_CLRLINE}, /* TAG_TD */
1.34 kristaps 64: {"li", HTML_CLRLINE}, /* TAG_LI */
65: {"ul", HTML_CLRLINE}, /* TAG_UL */
66: {"ol", HTML_CLRLINE}, /* TAG_OL */
1.114 kristaps 67: {"dl", HTML_CLRLINE}, /* TAG_DL */
68: {"dt", HTML_CLRLINE}, /* TAG_DT */
69: {"dd", HTML_CLRLINE}, /* TAG_DD */
1.115 kristaps 70: {"blockquote", HTML_CLRLINE}, /* TAG_BLOCKQUOTE */
1.116 kristaps 71: {"p", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_P */
1.118 kristaps 72: {"pre", HTML_CLRLINE }, /* TAG_PRE */
1.119 kristaps 73: {"b", 0 }, /* TAG_B */
1.120 kristaps 74: {"i", 0 }, /* TAG_I */
1.121 kristaps 75: {"code", 0 }, /* TAG_CODE */
1.122 kristaps 76: {"small", 0 }, /* TAG_SMALL */
1.161 schwarze 77: {"em", 0 }, /* TAG_EM */
1.90 kristaps 78: };
79:
1.82 kristaps 80: static const char *const htmlattrs[ATTR_MAX] = {
1.119 kristaps 81: "http-equiv", /* ATTR_HTTPEQUIV */
82: "content", /* ATTR_CONTENT */
83: "name", /* ATTR_NAME */
84: "rel", /* ATTR_REL */
85: "href", /* ATTR_HREF */
86: "type", /* ATTR_TYPE */
87: "media", /* ATTR_MEDIA */
88: "class", /* ATTR_CLASS */
89: "style", /* ATTR_STYLE */
90: "width", /* ATTR_WIDTH */
91: "id", /* ATTR_ID */
92: "summary", /* ATTR_SUMMARY */
93: "align", /* ATTR_ALIGN */
1.125 kristaps 94: "colspan", /* ATTR_COLSPAN */
1.29 kristaps 95: };
1.10 kristaps 96:
1.140 kristaps 97: static const char *const roffscales[SCALE_MAX] = {
98: "cm", /* SCALE_CM */
99: "in", /* SCALE_IN */
100: "pc", /* SCALE_PC */
101: "pt", /* SCALE_PT */
102: "em", /* SCALE_EM */
103: "em", /* SCALE_MM */
104: "ex", /* SCALE_EN */
105: "ex", /* SCALE_BU */
106: "em", /* SCALE_VS */
107: "ex", /* SCALE_FS */
108: };
109:
1.141 kristaps 110: static void bufncat(struct html *, const char *, size_t);
111: static void print_ctag(struct html *, enum htmltag);
1.159 schwarze 112: static int print_escape(char);
1.141 kristaps 113: static int print_encode(struct html *, const char *, int);
114: static void print_metaf(struct html *, enum mandoc_esc);
115: static void print_attr(struct html *, const char *, const char *);
116: static void *ml_alloc(char *, enum htmltype);
1.82 kristaps 117:
1.156 schwarze 118:
1.93 kristaps 119: static void *
120: ml_alloc(char *outopts, enum htmltype type)
1.10 kristaps 121: {
1.30 kristaps 122: struct html *h;
1.150 kristaps 123: const char *toks[5];
1.63 kristaps 124: char *v;
1.43 kristaps 125:
126: toks[0] = "style";
1.53 kristaps 127: toks[1] = "man";
1.54 kristaps 128: toks[2] = "includes";
1.150 kristaps 129: toks[3] = "fragment";
130: toks[4] = NULL;
1.30 kristaps 131:
1.128 kristaps 132: h = mandoc_calloc(1, sizeof(struct html));
1.10 kristaps 133:
1.93 kristaps 134: h->type = type;
1.66 kristaps 135: h->tags.head = NULL;
1.136 kristaps 136: h->symtab = mchars_alloc();
1.41 kristaps 137:
1.47 kristaps 138: while (outopts && *outopts)
1.63 kristaps 139: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
1.156 schwarze 140: case 0:
1.43 kristaps 141: h->style = v;
142: break;
1.156 schwarze 143: case 1:
1.53 kristaps 144: h->base_man = v;
1.43 kristaps 145: break;
1.156 schwarze 146: case 2:
1.54 kristaps 147: h->base_includes = v;
1.150 kristaps 148: break;
1.156 schwarze 149: case 3:
1.150 kristaps 150: h->oflags |= HTML_FRAGMENT;
1.54 kristaps 151: break;
1.43 kristaps 152: default:
153: break;
154: }
155:
1.30 kristaps 156: return(h);
1.29 kristaps 157: }
1.10 kristaps 158:
1.93 kristaps 159: void *
160: html_alloc(char *outopts)
161: {
162:
163: return(ml_alloc(outopts, HTML_HTML_4_01_STRICT));
164: }
165:
166: void *
167: xhtml_alloc(char *outopts)
168: {
169:
170: return(ml_alloc(outopts, HTML_XHTML_1_0_STRICT));
171: }
172:
1.29 kristaps 173: void
174: html_free(void *p)
175: {
1.30 kristaps 176: struct tag *tag;
177: struct html *h;
178:
179: h = (struct html *)p;
1.37 kristaps 180:
1.66 kristaps 181: while ((tag = h->tags.head) != NULL) {
1.156 schwarze 182: h->tags.head = tag->next;
1.30 kristaps 183: free(tag);
184: }
1.156 schwarze 185:
1.36 kristaps 186: if (h->symtab)
1.133 kristaps 187: mchars_free(h->symtab);
1.53 kristaps 188:
1.30 kristaps 189: free(h);
1.10 kristaps 190: }
1.2 kristaps 191:
1.51 kristaps 192: void
1.29 kristaps 193: print_gen_head(struct html *h)
194: {
1.41 kristaps 195: struct htmlpair tag[4];
196:
197: tag[0].key = ATTR_HTTPEQUIV;
198: tag[0].val = "Content-Type";
199: tag[1].key = ATTR_CONTENT;
200: tag[1].val = "text/html; charset=utf-8";
201: print_otag(h, TAG_META, 2, tag);
202:
203: tag[0].key = ATTR_NAME;
204: tag[0].val = "resource-type";
205: tag[1].key = ATTR_CONTENT;
206: tag[1].val = "document";
207: print_otag(h, TAG_META, 2, tag);
208:
209: if (h->style) {
210: tag[0].key = ATTR_REL;
211: tag[0].val = "stylesheet";
212: tag[1].key = ATTR_HREF;
213: tag[1].val = h->style;
214: tag[2].key = ATTR_TYPE;
215: tag[2].val = "text/css";
216: tag[3].key = ATTR_MEDIA;
217: tag[3].val = "all";
218: print_otag(h, TAG_LINK, 4, tag);
219: }
1.4 kristaps 220: }
221:
1.126 schwarze 222: static void
1.132 kristaps 223: print_metaf(struct html *h, enum mandoc_esc deco)
1.88 kristaps 224: {
1.90 kristaps 225: enum htmlfont font;
1.88 kristaps 226:
227: switch (deco) {
1.156 schwarze 228: case ESCAPE_FONTPREV:
1.90 kristaps 229: font = h->metal;
1.88 kristaps 230: break;
1.156 schwarze 231: case ESCAPE_FONTITALIC:
1.90 kristaps 232: font = HTMLFONT_ITALIC;
233: break;
1.156 schwarze 234: case ESCAPE_FONTBOLD:
1.90 kristaps 235: font = HTMLFONT_BOLD;
1.88 kristaps 236: break;
1.156 schwarze 237: case ESCAPE_FONTBI:
1.152 schwarze 238: font = HTMLFONT_BI;
239: break;
1.156 schwarze 240: case ESCAPE_FONT:
1.145 kristaps 241: /* FALLTHROUGH */
1.156 schwarze 242: case ESCAPE_FONTROMAN:
1.90 kristaps 243: font = HTMLFONT_NONE;
1.88 kristaps 244: break;
245: default:
246: abort();
247: /* NOTREACHED */
248: }
249:
1.122 kristaps 250: if (h->metaf) {
251: print_tagq(h, h->metaf);
252: h->metaf = NULL;
253: }
254:
255: h->metal = h->metac;
256: h->metac = font;
257:
1.152 schwarze 258: switch (font) {
1.156 schwarze 259: case HTMLFONT_ITALIC:
1.152 schwarze 260: h->metaf = print_otag(h, TAG_I, 0, NULL);
261: break;
1.156 schwarze 262: case HTMLFONT_BOLD:
1.152 schwarze 263: h->metaf = print_otag(h, TAG_B, 0, NULL);
264: break;
1.156 schwarze 265: case HTMLFONT_BI:
1.152 schwarze 266: h->metaf = print_otag(h, TAG_B, 0, NULL);
267: print_otag(h, TAG_I, 0, NULL);
268: break;
269: default:
270: break;
271: }
1.88 kristaps 272: }
273:
1.138 kristaps 274: int
275: html_strlen(const char *cp)
276: {
1.151 schwarze 277: size_t rsz;
278: int skip, sz;
1.138 kristaps 279:
280: /*
281: * Account for escaped sequences within string length
282: * calculations. This follows the logic in term_strlen() as we
283: * must calculate the width of produced strings.
284: * Assume that characters are always width of "1". This is
285: * hacky, but it gets the job done for approximation of widths.
286: */
287:
288: sz = 0;
1.151 schwarze 289: skip = 0;
290: while (1) {
291: rsz = strcspn(cp, "\\");
292: if (rsz) {
293: cp += rsz;
294: if (skip) {
295: skip = 0;
296: rsz--;
297: }
298: sz += rsz;
299: }
300: if ('\0' == *cp)
301: break;
302: cp++;
303: switch (mandoc_escape(&cp, NULL, NULL)) {
1.156 schwarze 304: case ESCAPE_ERROR:
1.138 kristaps 305: return(sz);
1.156 schwarze 306: case ESCAPE_UNICODE:
1.144 kristaps 307: /* FALLTHROUGH */
1.156 schwarze 308: case ESCAPE_NUMBERED:
1.139 kristaps 309: /* FALLTHROUGH */
1.156 schwarze 310: case ESCAPE_SPECIAL:
1.151 schwarze 311: if (skip)
312: skip = 0;
313: else
314: sz++;
315: break;
1.156 schwarze 316: case ESCAPE_SKIPCHAR:
1.151 schwarze 317: skip = 1;
1.138 kristaps 318: break;
319: default:
320: break;
321: }
322: }
1.151 schwarze 323: return(sz);
1.138 kristaps 324: }
1.88 kristaps 325:
1.85 kristaps 326: static int
1.159 schwarze 327: print_escape(char c)
328: {
329:
330: switch (c) {
331: case '<':
332: printf("<");
333: break;
334: case '>':
335: printf(">");
336: break;
337: case '&':
338: printf("&");
339: break;
340: case '"':
341: printf(""");
342: break;
343: case ASCII_NBRSP:
344: putchar('-');
345: break;
346: case ASCII_HYPH:
347: putchar('-');
348: /* FALLTHROUGH */
349: case ASCII_BREAK:
350: break;
351: default:
352: return(0);
353: }
354: return(1);
355: }
356:
357: static int
1.88 kristaps 358: print_encode(struct html *h, const char *p, int norecurse)
1.29 kristaps 359: {
1.77 kristaps 360: size_t sz;
1.141 kristaps 361: int c, len, nospace;
1.82 kristaps 362: const char *seq;
1.132 kristaps 363: enum mandoc_esc esc;
1.158 schwarze 364: static const char rejs[9] = { '\\', '<', '>', '&', '"',
1.154 schwarze 365: ASCII_NBRSP, ASCII_HYPH, ASCII_BREAK, '\0' };
1.14 kristaps 366:
1.85 kristaps 367: nospace = 0;
368:
1.132 kristaps 369: while ('\0' != *p) {
1.151 schwarze 370: if (HTML_SKIPCHAR & h->flags && '\\' != *p) {
371: h->flags &= ~HTML_SKIPCHAR;
372: p++;
373: continue;
374: }
375:
1.100 kristaps 376: sz = strcspn(p, rejs);
1.77 kristaps 377:
378: fwrite(p, 1, sz, stdout);
1.132 kristaps 379: p += (int)sz;
1.77 kristaps 380:
1.132 kristaps 381: if ('\0' == *p)
382: break;
383:
1.159 schwarze 384: if (print_escape(*p++))
1.154 schwarze 385: continue;
1.77 kristaps 386:
1.132 kristaps 387: esc = mandoc_escape(&p, &seq, &len);
388: if (ESCAPE_ERROR == esc)
389: break;
1.82 kristaps 390:
1.132 kristaps 391: switch (esc) {
1.156 schwarze 392: case ESCAPE_FONT:
1.151 schwarze 393: /* FALLTHROUGH */
1.156 schwarze 394: case ESCAPE_FONTPREV:
1.151 schwarze 395: /* FALLTHROUGH */
1.156 schwarze 396: case ESCAPE_FONTBOLD:
1.151 schwarze 397: /* FALLTHROUGH */
1.156 schwarze 398: case ESCAPE_FONTITALIC:
1.151 schwarze 399: /* FALLTHROUGH */
1.156 schwarze 400: case ESCAPE_FONTBI:
1.152 schwarze 401: /* FALLTHROUGH */
1.156 schwarze 402: case ESCAPE_FONTROMAN:
1.151 schwarze 403: if (0 == norecurse)
404: print_metaf(h, esc);
405: continue;
1.156 schwarze 406: case ESCAPE_SKIPCHAR:
1.151 schwarze 407: h->flags |= HTML_SKIPCHAR;
408: continue;
409: default:
410: break;
411: }
412:
413: if (h->flags & HTML_SKIPCHAR) {
414: h->flags &= ~HTML_SKIPCHAR;
415: continue;
416: }
417:
418: switch (esc) {
1.156 schwarze 419: case ESCAPE_UNICODE:
1.159 schwarze 420: /* Skip past "u" header. */
1.144 kristaps 421: c = mchars_num2uc(seq + 1, len - 1);
422: if ('\0' != c)
423: printf("&#x%x;", c);
424: break;
1.156 schwarze 425: case ESCAPE_NUMBERED:
1.141 kristaps 426: c = mchars_num2char(seq, len);
1.159 schwarze 427: if ( ! ('\0' == c || print_escape(c)))
1.141 kristaps 428: putchar(c);
1.82 kristaps 429: break;
1.156 schwarze 430: case ESCAPE_SPECIAL:
1.147 kristaps 431: c = mchars_spec2cp(h->symtab, seq, len);
432: if (c > 0)
433: printf("&#%d;", c);
1.159 schwarze 434: else if (-1 == c && 1 == len &&
435: !print_escape(*seq))
1.147 kristaps 436: putchar((int)*seq);
1.132 kristaps 437: break;
1.156 schwarze 438: case ESCAPE_NOSPACE:
1.132 kristaps 439: if ('\0' == *p)
440: nospace = 1;
1.88 kristaps 441: break;
1.82 kristaps 442: default:
443: break;
444: }
1.32 kristaps 445: }
1.85 kristaps 446:
447: return(nospace);
1.14 kristaps 448: }
449:
1.94 kristaps 450: static void
451: print_attr(struct html *h, const char *key, const char *val)
452: {
453: printf(" %s=\"", key);
454: (void)print_encode(h, val, 1);
455: putchar('\"');
456: }
457:
1.51 kristaps 458: struct tag *
1.156 schwarze 459: print_otag(struct html *h, enum htmltag tag,
1.29 kristaps 460: int sz, const struct htmlpair *p)
1.14 kristaps 461: {
1.29 kristaps 462: int i;
1.30 kristaps 463: struct tag *t;
464:
1.94 kristaps 465: /* Push this tags onto the stack of open scopes. */
466:
1.30 kristaps 467: if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
1.128 kristaps 468: t = mandoc_malloc(sizeof(struct tag));
1.30 kristaps 469: t->tag = tag;
1.66 kristaps 470: t->next = h->tags.head;
471: h->tags.head = t;
1.30 kristaps 472: } else
473: t = NULL;
1.29 kristaps 474:
475: if ( ! (HTML_NOSPACE & h->flags))
1.105 kristaps 476: if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
477: /* Manage keeps! */
478: if ( ! (HTML_KEEP & h->flags)) {
479: if (HTML_PREKEEP & h->flags)
480: h->flags |= HTML_KEEP;
481: putchar(' ');
482: } else
483: printf(" ");
484: }
1.29 kristaps 485:
1.109 kristaps 486: if ( ! (h->flags & HTML_NONOSPACE))
487: h->flags &= ~HTML_NOSPACE;
1.110 kristaps 488: else
489: h->flags |= HTML_NOSPACE;
1.109 kristaps 490:
1.94 kristaps 491: /* Print out the tag name and attributes. */
492:
1.29 kristaps 493: printf("<%s", htmltags[tag].name);
1.94 kristaps 494: for (i = 0; i < sz; i++)
495: print_attr(h, htmlattrs[p[i].key], p[i].val);
496:
497: /* Add non-overridable attributes. */
498:
499: if (TAG_HTML == tag && HTML_XHTML_1_0_STRICT == h->type) {
500: print_attr(h, "xmlns", "http://www.w3.org/1999/xhtml");
501: print_attr(h, "xml:lang", "en");
502: print_attr(h, "lang", "en");
1.29 kristaps 503: }
1.93 kristaps 504:
1.134 kristaps 505: /* Accommodate for XML "well-formed" singleton escaping. */
1.94 kristaps 506:
1.93 kristaps 507: if (HTML_AUTOCLOSE & htmltags[tag].flags)
508: switch (h->type) {
1.156 schwarze 509: case HTML_XHTML_1_0_STRICT:
1.93 kristaps 510: putchar('/');
511: break;
512: default:
513: break;
514: }
515:
1.78 kristaps 516: putchar('>');
1.14 kristaps 517:
1.29 kristaps 518: h->flags |= HTML_NOSPACE;
1.117 kristaps 519:
520: if ((HTML_AUTOCLOSE | HTML_CLRLINE) & htmltags[tag].flags)
521: putchar('\n');
522:
1.30 kristaps 523: return(t);
1.14 kristaps 524: }
525:
1.29 kristaps 526: static void
527: print_ctag(struct html *h, enum htmltag tag)
1.14 kristaps 528: {
1.156 schwarze 529:
1.29 kristaps 530: printf("</%s>", htmltags[tag].name);
1.71 kristaps 531: if (HTML_CLRLINE & htmltags[tag].flags) {
1.29 kristaps 532: h->flags |= HTML_NOSPACE;
1.78 kristaps 533: putchar('\n');
1.156 schwarze 534: }
1.14 kristaps 535: }
536:
1.51 kristaps 537: void
1.93 kristaps 538: print_gen_decls(struct html *h)
1.1 kristaps 539: {
1.93 kristaps 540: const char *doctype;
541: const char *dtd;
1.96 kristaps 542: const char *name;
1.93 kristaps 543:
544: switch (h->type) {
1.156 schwarze 545: case HTML_HTML_4_01_STRICT:
1.96 kristaps 546: name = "HTML";
1.93 kristaps 547: doctype = "-//W3C//DTD HTML 4.01//EN";
548: dtd = "http://www.w3.org/TR/html4/strict.dtd";
549: break;
550: default:
1.141 kristaps 551: puts("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
1.96 kristaps 552: name = "html";
1.93 kristaps 553: doctype = "-//W3C//DTD XHTML 1.0 Strict//EN";
554: dtd = "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd";
555: break;
556: }
557:
1.156 schwarze 558: printf("<!DOCTYPE %s PUBLIC \"%s\" \"%s\">\n",
559: name, doctype, dtd);
1.1 kristaps 560: }
561:
1.51 kristaps 562: void
1.104 kristaps 563: print_text(struct html *h, const char *word)
1.1 kristaps 564: {
565:
1.105 kristaps 566: if ( ! (HTML_NOSPACE & h->flags)) {
567: /* Manage keeps! */
568: if ( ! (HTML_KEEP & h->flags)) {
569: if (HTML_PREKEEP & h->flags)
570: h->flags |= HTML_KEEP;
571: putchar(' ');
572: } else
573: printf(" ");
574: }
1.30 kristaps 575:
1.122 kristaps 576: assert(NULL == h->metaf);
1.152 schwarze 577: switch (h->metac) {
1.156 schwarze 578: case HTMLFONT_ITALIC:
1.152 schwarze 579: h->metaf = print_otag(h, TAG_I, 0, NULL);
580: break;
1.156 schwarze 581: case HTMLFONT_BOLD:
1.152 schwarze 582: h->metaf = print_otag(h, TAG_B, 0, NULL);
583: break;
1.156 schwarze 584: case HTMLFONT_BI:
1.152 schwarze 585: h->metaf = print_otag(h, TAG_B, 0, NULL);
586: print_otag(h, TAG_I, 0, NULL);
587: break;
588: default:
589: break;
590: }
1.122 kristaps 591:
1.104 kristaps 592: assert(word);
1.149 kristaps 593: if ( ! print_encode(h, word, 0)) {
1.109 kristaps 594: if ( ! (h->flags & HTML_NONOSPACE))
595: h->flags &= ~HTML_NOSPACE;
1.149 kristaps 596: } else
597: h->flags |= HTML_NOSPACE;
1.122 kristaps 598:
599: if (h->metaf) {
600: print_tagq(h, h->metaf);
601: h->metaf = NULL;
602: }
1.113 schwarze 603:
604: h->flags &= ~HTML_IGNDELIM;
1.1 kristaps 605: }
1.30 kristaps 606:
1.51 kristaps 607: void
1.30 kristaps 608: print_tagq(struct html *h, const struct tag *until)
609: {
610: struct tag *tag;
611:
1.66 kristaps 612: while ((tag = h->tags.head) != NULL) {
1.156 schwarze 613: /*
1.125 kristaps 614: * Remember to close out and nullify the current
615: * meta-font and table, if applicable.
616: */
1.89 kristaps 617: if (tag == h->metaf)
618: h->metaf = NULL;
1.125 kristaps 619: if (tag == h->tblt)
620: h->tblt = NULL;
1.30 kristaps 621: print_ctag(h, tag->tag);
1.66 kristaps 622: h->tags.head = tag->next;
1.30 kristaps 623: free(tag);
624: if (until && tag == until)
625: return;
626: }
627: }
628:
1.51 kristaps 629: void
1.30 kristaps 630: print_stagq(struct html *h, const struct tag *suntil)
631: {
632: struct tag *tag;
633:
1.66 kristaps 634: while ((tag = h->tags.head) != NULL) {
1.30 kristaps 635: if (suntil && tag == suntil)
636: return;
1.156 schwarze 637: /*
1.125 kristaps 638: * Remember to close out and nullify the current
639: * meta-font and table, if applicable.
640: */
1.89 kristaps 641: if (tag == h->metaf)
642: h->metaf = NULL;
1.125 kristaps 643: if (tag == h->tblt)
644: h->tblt = NULL;
1.30 kristaps 645: print_ctag(h, tag->tag);
1.66 kristaps 646: h->tags.head = tag->next;
1.30 kristaps 647: free(tag);
648: }
649: }
1.55 kristaps 650:
651: void
652: bufinit(struct html *h)
653: {
654:
655: h->buf[0] = '\0';
656: h->buflen = 0;
657: }
658:
659: void
1.58 kristaps 660: bufcat_style(struct html *h, const char *key, const char *val)
661: {
662:
663: bufcat(h, key);
1.141 kristaps 664: bufcat(h, ":");
1.58 kristaps 665: bufcat(h, val);
1.141 kristaps 666: bufcat(h, ";");
1.58 kristaps 667: }
668:
669: void
1.55 kristaps 670: bufcat(struct html *h, const char *p)
671: {
1.157 schwarze 672:
673: /*
674: * XXX This is broken and not easy to fix.
675: * When using the -Oincludes option, buffmt_includes()
676: * may pass in strings overrunning BUFSIZ, causing a crash.
677: */
1.55 kristaps 678:
1.141 kristaps 679: h->buflen = strlcat(h->buf, p, BUFSIZ);
680: assert(h->buflen < BUFSIZ);
1.55 kristaps 681: }
682:
683: void
1.141 kristaps 684: bufcat_fmt(struct html *h, const char *fmt, ...)
1.55 kristaps 685: {
686: va_list ap;
687:
688: va_start(ap, fmt);
1.156 schwarze 689: (void)vsnprintf(h->buf + (int)h->buflen,
690: BUFSIZ - h->buflen - 1, fmt, ap);
1.55 kristaps 691: va_end(ap);
692: h->buflen = strlen(h->buf);
693: }
694:
1.141 kristaps 695: static void
1.55 kristaps 696: bufncat(struct html *h, const char *p, size_t sz)
697: {
698:
1.141 kristaps 699: assert(h->buflen + sz + 1 < BUFSIZ);
700: strncat(h->buf, p, sz);
1.55 kristaps 701: h->buflen += sz;
702: }
703:
704: void
705: buffmt_includes(struct html *h, const char *name)
706: {
707: const char *p, *pp;
708:
709: pp = h->base_includes;
1.156 schwarze 710:
1.143 kristaps 711: bufinit(h);
1.61 kristaps 712: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 713: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 714: switch (*(p + 1)) {
1.156 schwarze 715: case'I':
1.55 kristaps 716: bufcat(h, name);
717: break;
718: default:
719: bufncat(h, p, 2);
720: break;
721: }
722: pp = p + 2;
723: }
724: if (pp)
725: bufcat(h, pp);
726: }
727:
728: void
1.156 schwarze 729: buffmt_man(struct html *h, const char *name, const char *sec)
1.55 kristaps 730: {
731: const char *p, *pp;
732:
733: pp = h->base_man;
1.156 schwarze 734:
1.143 kristaps 735: bufinit(h);
1.61 kristaps 736: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 737: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 738: switch (*(p + 1)) {
1.156 schwarze 739: case 'S':
1.58 kristaps 740: bufcat(h, sec ? sec : "1");
1.55 kristaps 741: break;
1.156 schwarze 742: case 'N':
1.153 joerg 743: bufcat_fmt(h, "%s", name);
1.55 kristaps 744: break;
745: default:
746: bufncat(h, p, 2);
747: break;
748: }
749: pp = p + 2;
750: }
751: if (pp)
752: bufcat(h, pp);
753: }
1.58 kristaps 754:
755: void
756: bufcat_su(struct html *h, const char *p, const struct roffsu *su)
757: {
1.62 kristaps 758: double v;
1.58 kristaps 759:
760: v = su->scale;
1.140 kristaps 761: if (SCALE_MM == su->unit && 0.0 == (v /= 100.0))
762: v = 1.0;
1.162 ! kristaps 763: else if (SCALE_BU == su->unit)
! 764: v /= 24.0;
1.58 kristaps 765:
1.141 kristaps 766: bufcat_fmt(h, "%s: %.2f%s;", p, v, roffscales[su->unit]);
1.58 kristaps 767: }
1.68 kristaps 768:
769: void
1.142 kristaps 770: bufcat_id(struct html *h, const char *src)
1.68 kristaps 771: {
772:
773: /* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */
774:
1.142 kristaps 775: while ('\0' != *src)
776: bufcat_fmt(h, "%.2x", *src++);
1.68 kristaps 777: }
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